src/gallium/drivers/llvmpipe/lp_limits.h

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  27
  28 /**
  29  * Implementation limits for LLVMpipe driver.
  30  */
  31
  32 #ifndef LP_LIMITS_H
  33 #define LP_LIMITS_H
  34
  35
  36 /**
  37  * Tile size (width and height). This needs to be a power of two.
  38  */
  39 #define TILE_ORDER 6
  40 #define TILE_SIZE (1 << TILE_ORDER)
  41
  42
  43 /**
  44  * Max texture sizes
  45  */
  46 /**
  47  * 2GB is the actual max currently (we always use 32bit offsets, and both
  48  * llvm GEP as well as avx2 gather use signed offsets).
  49  */
  50 #define LP_MAX_TEXTURE_SIZE (2 * 1024 * 1024 * 1024ULL)
  51 #define LP_MAX_TEXTURE_2D_LEVELS 14  /* 8K x 8K for now */
  52 #define LP_MAX_TEXTURE_3D_LEVELS 12  /* 2K x 2K x 2K for now */
  53 #define LP_MAX_TEXTURE_CUBE_LEVELS 14  /* 8K x 8K for now */
  54 #define LP_MAX_TEXTURE_ARRAY_LAYERS 512 /* 8K x 512 / 8K x 8K x 512 */
  55
  56
  57 /** This must be the larger of LP_MAX_TEXTURE_2D/3D_LEVELS */
  58 #define LP_MAX_TEXTURE_LEVELS LP_MAX_TEXTURE_2D_LEVELS
  59
  60
  61 /**
  62  * Max drawing surface size is the max texture size
  63  */
  64 #define LP_MAX_HEIGHT (1 << (LP_MAX_TEXTURE_LEVELS - 1))
  65 #define LP_MAX_WIDTH  (1 << (LP_MAX_TEXTURE_LEVELS - 1))
  66
  67 #define LP_MAX_SAMPLES 4
  68
  69 #define LP_MAX_THREADS 16
  70
  71
  72 /**
  73  * Max bytes per scene.  This may be replaced by a runtime parameter.
  74  */
  75 #define LP_MAX_SCENE_SIZE (512 * 1024 * 1024)
  76
  77 /**
  78  * Max number of shader variants (for all shaders combined,
  79  * per context) that will be kept around.
  80  */
  81 #define LP_MAX_SHADER_VARIANTS 1024
  82
  83 /**
  84  * Max number of instructions (for all fragment shaders combined per context)
  85  * that will be kept around (counted in terms of llvm ir).
  86  */
  87 #define LP_MAX_SHADER_INSTRUCTIONS (2048 * LP_MAX_SHADER_VARIANTS)
  88
  89 /**
  90  * Max number of setup variants that will be kept around.
  91  *
  92  * These are determined by the combination of the fragment shader
  93  * input signature and a small amount of rasterization state (eg
  94  * flatshading).  It is likely that many active fragment shaders will
  95  * share the same setup variant.
  96  */
  97 #define LP_MAX_SETUP_VARIANTS 64
  98
  99 /*
 100  * Max point size reported. Cap vertex shader point sizes to this.
 101  */
 102 #define LP_MAX_POINT_WIDTH 255.0f
 103 #endif /* LP_LIMITS_H */